Applicator-securing means



Dec. 11, 1928. 1,694,649

E. R. GOLDFIELD ET AL APPLICATOR SECURING MEANS Filed Feb. 14, 1927 ll,i928.

EEATES 1,694,649 harem OFFICE.

EDWIN It. GOLDFIELD.ANLD CAPEBTON HORSLEY, OF CLEVELAND, OHEO, ASSIGNORS'TQ THE ENG'ELII ELECTRIC COMPANY, 01F

OHIO.

CLEVELAND, OHIO, A COEPORATIGN 0F APPLICATOR-SECURING MEANS.

Application-filedFebruary 1a, 1927. Serial No. 168,050 1 An applicatorof the type to which this in vention is especially adapted comprises an.electrode plate presenting a contact surface of conformation to fit thatportion of the body which is to be treated, and carrying on its backsurface means for connecting the;

electrode in the treating circuit. Ordinarily to prevent burning it isnecessary that good contact with the body he maintained preferablythroughout the surface of the plate; to allow for circulation, however,the plate must be yieldably secured in] position.

According to our invention we secure the plate with a member of readilyflexible elastic webbing by novel means which allow engage mont betweenthe plate and webbing in any desirable relation or adjustment, andwithout mutilating the webbing; or when a more permanent engagement isdesired, by perforation of the webbing, provide a positive interlocktherewith.

The exact nature of the invention will be apparent from the followingdescription taken in connection with the accompanying drawings in whichFig. l is a back view of an electrode chosen an example in which oursecuring means are incorporated and showing a piece of webbing securedwit-h the electrode thereby; Fig. 2 is a side view of the same partly insection to show details of the means by which the webbing is secured;and Fig. 3 is a detail sectional view showing an alternate and morepermanent manner of securing the webbing by our securing means.

Referring now to the drawings, 1 is the electrode proper comprising aplate of genorally arcua'te conformation on the back of which is anintegral lug 2 carrying terminals by which the electrode may beconnected in the treating circuit. The electrode is shaped to fit theportion of the human body for which it was designed, the particularelectrode illus trated for example would fit around a limb such as theleg at its calf.

In employing the electrode, as stated above a. firm contact with thebody must be established throughout its inner surface and the electrodemust be insulated from other ohjects than are in the circuit. Moreover,

many electrical treatment require some con- I siderable duration of theapplication. For

all these reasons provision must be made for securing the electrode inoperative position, firmly, yet in a manner so asnot to impede the bloodcirculation of the patient.

The conditions recited dictate the employ ment for the purpose,of a bandof readily flexible textile material, preferably of an elas-j ticnature, such as the welllrnown elastic rwebbing in which parallelthreads of rubber are interwoven in such manner that the webalongitudmaldirection.

bing is extensible in A band of such material forms an ideal medium forsecuring such an applicator.

According to our invention we provide on the body portion of theelectrode, as one'adjacent each end thereof, an upstanding projection 3ofthe peculiar form illustrated havmg an undercut base portion andpreferably terminating in a bluntly pointed nib portion, the twodescribed portions forming between them an overhanging shoulder or bluntedge. The projection is preferably of circular section, so that theshoulder is circular and the nib portion coniform.

We have found that with such a projection it is possible to secure awebbing such as described, the shoulder of the projection engaging thethreads of the webbing to hold the same under tension, but withoutperforating it. This engagement is easily accomplished by pressing thewebbing, as by the thumb, around and particularly back of and againstthe projection, as tension is applied, and in the nature of frictionalengagement.

hen a more permanent engagement is desired, as for example at one end ofthe webbing, to form a secured end, the proj ection may be punchedthrough the webbing, the point of the nib portion being sufiicientlysharp to pierce the webbing when pressed directly against it, thisarrangement being shown in Fig. 3. When thus secured upon theprojection, the webbing is secured from unintentional removal therefromby the overhanging circular edge thereof already described.

lVhen properly applied the webbing free end assumes a position asindicated in Figs. 1 and 2, in actual use the opposite or secured endhaving been secured in the same manner or as indicated in Fig. 3 on theoppositeprojection. Where the electrode is of larger area, obviously, anumber of projections may be employed in connection with a Widersecuring belt if necessary.

In employing the arrangement described the position of the projectionsin the Webbing will he rarely, if ever, duplicated, but since theWebbing is not injured in anyway by the projection employed as indicatedin Figs. 1

and 2, in any event the Webbing will last up to the life of the elasticmembers. It will be noted that the points of the projections are sosmall and blunt-as to be incapable oieffecting any accidental bodilyinjury, or injury to the Webbing, although ca iiable of gPQIiEO- ratingthe Webbing if desired.

It will be evident also, that the invention is equally applicable forsimilar employment in connection with applicators other than theelectrode chosen for illustration.

'VVhat We claim is:

1. In an applicator having a body portion, a projection upstandingtherefrom and having an undercut base portion and a nib portion, theprojection portions forming therebetween-an edge overhanging the baseportion and adapted for engagement with a securing band oi elasticebbing applied flatwise to saidbody portion. 7

2. In an applicator having a body portion, a projectionupstanding-therefiom and having an under cut base portion and a coniformnib portion, the projection portions forming therebetween a circularblunt edge overhanging the base portion and adapted for frictionalengagement With a securing band of elastic Webbing applied fiatwise tosaid body portion, said nib portion being adapted to pierce said bandand said edge being adapted to retain-the same when pierced, as anoptiona1 manor of securing the band.

3. In an applicator having a body portion, a PELlI Gif projectionsupstanding therefrom and each having an undercut :base portion and ani'lb portion, said portions of each projection forming th-erebetween anoverhanging edge whereby one end oft-a securingband of elastic Webbingmay be pierced by the nib portion .osf either of said projectiennand beretaineduo-n said projection by the overhanging edge thereof, and theother end of said band may be applied fiatW-ise to'sa-id :applicatorbody portion and frictionally engaged with said edge thereof ,to'yieldab'ly secure the applicator upon a limb.

In testimony whereof we hereby afiix our signatures.

nnWINn. eonnrinnn. CAPERTQN nonsnny.

